Cord adjusters

A cord adjuster comprising a body having a through passage which is divided longitudinally for the accommodation of cord sections capable of being passed therethrough in side-by-side spaced arrangement and an arresting member supported on the body for displacement between two end positions, said arresting member being provided with clamping areas disposed in the through passage and cooperating with respective associated clamping areas of the body in order to clamp the cord sections between them in tight clamping engagement in one end position of the arresting member, characterised in that the passage is at least in part an open-topped channel, a stationary clamping projection is arranged on the bottom of the channel, and the arresting member is a lid member slidingly displaceable on the upper surface of the body and closing the channel, said lid member being provided on the underside thereof with at least one guiding projection for locating and slidingly guiding said projection engaging beneath a corresponding guiding portion of the body, and the clamping area being formed integrally with the lid member and extending on both sides of the clamping projection while being spaced therefrom, said lid and said body having opposed finger engaging sections thereon for engagement by a thumb and one other finger to effect relative sliding movement of said body and said lid between clamping and non-clamping positions.